/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
 * Copyright (c) 2013-2016 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
 */

#include "link.hpp"
#include "security/key-chain.hpp"
#include "security/v1/cryptopp.hpp"
#include "encoding/buffer-stream.hpp"

#include "boost-test.hpp"
#include "identity-management-fixture.hpp"

namespace ndn {
namespace tests {

BOOST_AUTO_TEST_SUITE(TestLink)

const uint8_t LinkTest[] = {
0x06, 0xda, // Data
    0x07, 0x14, // Name
        0x08, 0x05,
            0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x08, 0x03,
            0x6e, 0x64, 0x6e,
        0x08, 0x06,
            0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
    0x14, 0x07, // MetaInfo
        0x18, 0x01, // ContentType
            0x01,
        0x19, 0x02, // FreshnessPeriod
            0x27, 0x10,
    0x15, 0x1a, // Content
        0x1f, 0x0c, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x0a,
            0x07, 0x07, // Name
                0x08, 0x05,
                    0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x1f, 0x0a, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x14,
            0x07, 0x05, // Name
                0x08, 0x03,
                    0x6e, 0x64, 0x6e,
    0x16, 0x1b, // SignatureInfo
        0x1b, 0x01, // SignatureType
            0x01,
        0x1c, 0x16, // KeyLocator
            0x07, 0x14, // Name
                0x08, 0x04,
                    0x74, 0x65, 0x73, 0x74,
                0x08, 0x03,
                    0x6b, 0x65, 0x79,
                0x08, 0x07,
                    0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
    0x17, 0x80, // SignatureValue
        0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
        0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
        0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
        0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
        0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
        0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
        0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
        0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
        0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
        0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
};

const uint8_t IncorrectContentTypeLink[] = {
0x06, 0xda, // Data
    0x07, 0x14, // Name
        0x08, 0x05,
            0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x08, 0x03,
            0x6e, 0x64, 0x6e,
        0x08, 0x06,
            0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
    0x14, 0x07, // MetaInfo
        0x18, 0x01, // ContentType
            0x02,
        0x19, 0x02, // FreshnessPeriod
            0x27, 0x10,
    0x15, 0x1a, // Content
        0x1f, 0x0c,  // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x0a,
            0x07, 0x07, // Name
                0x08, 0x05,
                    0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x1f, 0x0a, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x14,
            0x07, 0x05, // Name
                0x08, 0x03,
                    0x6e, 0x64, 0x6e,
    0x16, 0x1b, // SignatureInfo
        0x1b, 0x01, // SignatureType
            0x01,
        0x1c, 0x16, // KeyLocator
            0x07, 0x14, // Name
                0x08, 0x04,
                    0x74, 0x65, 0x73, 0x74,
                0x08, 0x03,
                    0x6b, 0x65, 0x79,
                0x08, 0x07,
                    0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
    0x17, 0x80, // SignatureValue
        0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
        0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
        0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
        0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
        0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
        0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
        0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
        0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
        0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
        0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
};

const uint8_t MissingPreferenceLink[] = {
0x06, 0xd7, // Data
    0x07, 0x14, // Name
        0x08, 0x05,
            0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x08, 0x03,
            0x6e, 0x64, 0x6e,
        0x08, 0x06,
            0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
    0x14, 0x07, // MetaInfo
        0x18, 0x01, // ContentType
            0x01,
        0x19, 0x02, // FreshnessPeriod
            0x27, 0x10,
    0x15, 0x17, // Content
        0x1f, 0x09, // LinkDelegation
            0x07, 0x07, // Name
                0x08, 0x05,
                    0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x1f, 0x0a, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x14,
            0x07, 0x05, // Name
                0x08, 0x03,
                    0x6e, 0x64, 0x6e,
    0x16, 0x1b, // SignatureInfo
        0x1b, 0x01, // SignatureType
            0x01,
        0x1c, 0x16, // KeyLocator
            0x07, 0x14, // Name
                0x08, 0x04,
                    0x74, 0x65, 0x73, 0x74,
                0x08, 0x03,
                    0x6b, 0x65, 0x79,
                0x08, 0x07,
                    0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
    0x17, 0x80, // SignatureValue
        0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
        0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
        0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
        0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
        0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
        0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
        0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
        0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
        0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
        0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
};

const uint8_t MissingNameLink[] = {
0x06, 0xd1, // Data
    0x07, 0x14, // Name
        0x08, 0x05,
            0x6c, 0x6f, 0x63, 0x61, 0x6c,
        0x08, 0x03,
            0x6e, 0x64, 0x6e,
        0x08, 0x06,
            0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
    0x14, 0x07, // MetaInfo
        0x18, 0x01, // ContentType
            0x01,
        0x19, 0x02, // FreshnessPeriod
            0x27, 0x10,
    0x15, 0x11, // Content
        0x1f, 0x03, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x0a,
        0x1f, 0x0a, // LinkDelegation
            0x1e, 0x01, // LinkPreference
                0x14,
            0x07, 0x05, // Name
                0x08, 0x03,
                    0x6e, 0x64, 0x6e,
    0x16, 0x1b, // SignatureInfo
        0x1b, 0x01, // SignatureType
            0x01,
        0x1c, 0x16, // KeyLocator
            0x07, 0x14, // Name
                0x08, 0x04,
                    0x74, 0x65, 0x73, 0x74,
                0x08, 0x03,
                    0x6b, 0x65, 0x79,
                0x08, 0x07,
                    0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
    0x17, 0x80, // SignatureValue
        0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
        0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
        0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
        0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
        0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
        0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
        0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
        0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
        0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
        0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
};

BOOST_AUTO_TEST_CASE(PairParsingCheck)
{
  Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
  BOOST_CHECK_EQUAL(link.getDelegations().size(), static_cast<uint32_t>(3));
}

BOOST_AUTO_TEST_CASE(CheckInsertDelegation)
{
  Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});

  link.addDelegation(30, Name("test4"));
  Link::DelegationSet delegations = link.getDelegations();
  int counter = 0;
  for (auto i = delegations.begin(); i != delegations.end(); i++) {
    counter++;
    if (counter == 1)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
      }
    if (counter == 2)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
      }
    if (counter == 3)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 30);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test4"));
      }
    if (counter == 4)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
      }
  }
}

BOOST_AUTO_TEST_CASE(CheckRemoveDelegation)
{
  Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});

  link.removeDelegation(Name("test2"));
  Link::DelegationSet delegations = link.getDelegations();
  int counter = 0;
  for (auto i = delegations.begin(); i != delegations.end(); i++) {
    counter++;
    if (counter == 1)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
      }
    if (counter == 2)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
      }
  }
}

BOOST_FIXTURE_TEST_CASE(CheckEncodeDecode, IdentityManagementFixture)
{
  Link link1("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
  m_keyChain.sign(link1);
  Block wire = link1.wireEncode();

  Link link2;
  link2.wireDecode(wire);
  Name name = link2.getName();
  BOOST_CHECK_EQUAL(Name("test"), name);

  Link::DelegationSet delegations;
  delegations = link2.getDelegations();
  int counter = 0;
  for (auto i = delegations.begin(); i != delegations.end(); i++) {
    counter++;
    if (counter == 1)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
      }
    if (counter == 2)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
      }
    if (counter == 3)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
      }
  }

  Link link3(wire);
  name = link3.getName();
  BOOST_CHECK_EQUAL(Name("test"), name);

  delegations = link3.getDelegations();
  counter = 0;
  for (auto i = delegations.begin(); i != delegations.end(); i++) {
    counter++;
    if (counter == 1)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
      }
    if (counter == 2)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
      }
    if (counter == 3)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
      }
  }
}

BOOST_AUTO_TEST_CASE(Decode)
{
  Block linkBlock(LinkTest, sizeof(LinkTest));
  Link link(linkBlock);
  BOOST_CHECK_EQUAL(link.getName(), Name("/local/ndn/prefix"));
  Link::DelegationSet delegations = link.getDelegations();
  int counter = 0;

  for (auto i = delegations.begin(); i != delegations.end(); i++) {
    counter++;
    if (counter == 1)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("local"));
      }
    if (counter == 2)
      {
        BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
        BOOST_CHECK_EQUAL(std::get<1>(*i), Name("ndn"));
      }
  }
}

BOOST_AUTO_TEST_CASE(CountDelegationFromWire)
{
  Block linkBlock(LinkTest, sizeof(LinkTest));
  BOOST_CHECK_EQUAL(Link::countDelegationsFromWire(linkBlock), 2);
}

BOOST_AUTO_TEST_CASE(IncorrectContentType)
{
  Block linkBlock(IncorrectContentTypeLink, sizeof(IncorrectContentTypeLink));
  Link link;
  BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
}

BOOST_AUTO_TEST_CASE(MissingPreferenceEncoding)
{
  Block linkBlock(MissingPreferenceLink, sizeof(MissingPreferenceLink));
  Link link;
  BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
}

BOOST_AUTO_TEST_CASE(MissingNameEncoding)
{
  Block linkBlock(MissingNameLink, sizeof(MissingNameLink));
  Link link;
  BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
}

BOOST_AUTO_TEST_SUITE_END() // TestLink

} // namespace tests
} // namespace ndn
